HSIS-12 Solid insulated ring main unit

(1)Rated voltage（KV）: -HSIS Solid insulated ring main cabinet:12 -HSIS(C) load-break switch:12 -HSIS(V) circuit breaker:12 -composite apparatus :12 (2)Rated current （A）: -HSIS Solid insulated ring main cabinet:630/1250 -HSIS(C) load-break switch:630/1250 -HSIS(V) circuit breaker:630/1250 -composite apparatus :630/1250 (3)Rated frequency（Hz）:50 (4)Operation types:vacuum (5)Arc extinguishing types :Permanent magnet and spring /Spring (6)Power-frequency withstand voltage（KV）:42/48 (7)Lighting impulse（KV）:75/85 (8)Rated short-circuit breaking current （KA）:20 (9)Rated short-circuit breaking current Breaking times :30 (10)Rated short-circuit current （KA）:50/20 (11)Rated short –circuit breaking current breaking times:5/2 (12)Rated short-time withstand current :20 (13)duration of rated short-circuit:4